Repairs 7 days a week · Within 24 hours
Boiler breakdowns and repairs in Brussels, 7 days a week
No heating, no hot water, boiler locked out? Call us, we answer 24/7. Our certified technicians repair Vaillant, Bulex, Bosch, Buderus, Junkers, Viessmann and Chaffoteaux boilers and come to you within 24 hours, 7 days a week. You know the price before any repair.
- 5/5 on Google
- 2-year guarantee
- Free quote within 24 hours

- Travel + diagnosis + 1st hour
€149 VAT incl.
Travel + diagnosis + 1st hour
- Call-out, 7 days a week
Within 24 hours
Call-out, 7 days a week
- We answer for emergencies
24/7
We answer for emergencies
- Parts and work
2-year guarantee
Parts and work
Diagnosis
The boiler faults we repair
We always start by finding the cause. Then you know the price of the repair, before we do it.
- 01
No heating
Cold radiators while the boiler seems to be running: the pump, the diverter valve, the thermostat or the circuit board may be to blame.
- 02
No hot water
The heating works but the water stays cold at the tap: often the domestic hot water exchanger, the diverter valve or a flow sensor.
- 03
Pressure dropping
Needle below 1 bar, frequent top-ups: there's probably a leak on the circuit or an expansion vessel that needs re-pressurising.
- 04
Boiler locked out or error code
Red light or a code on the display: note it down with your boiler's brand, it helps us prepare the visit.
- 05
Unusual noises
Banging, whistling or gurgling: air in the circuit, limescale in the heat exchanger or a tired pump.
- 06
Leak under the boiler
Dripping or a puddle: a faulty safety valve, fitting or seal. Turn off the water supply if the leak is significant.
- 07
Ignition failing
The flame or pilot light goes out after a few seconds: the electrode, gas supply, fan or flue need checking.
- 08
Poor combustion
A yellow flame, soot marks or a burning smell: switch the boiler off and have the combustion checked straight away.
Safety
Smell gas? Do these things, in this order
Open doors and windows. No flames or sparks: do not touch any switch, do not turn on a light, do not use any electrical appliance or phone inside the home.
If you can reach the gas meter valve without turning on a light, close it. Then leave the home and call from outside.
Free gas emergency numbers: Brussels (Sibelga) 0800 19 400 · Flemish Brabant (Fluvius) 0800 65 0 65 · Walloon Brabant (ORES) 0800 87 087 · or 112.
Once the situation is safe, contact us to check your system and put it back into service.
Repairs · 24/7
A breakdown? We answer 24/7.
Tell us what is happening: we tell you straight away whether it can wait, and a technician comes within 24 hours, weekends included.
Would you rather we called you? Request a callback

Making the right choice
Before you call: 3 quick checks
The pressure. On the gauge, the needle is usually between 1 and 2 bar when cold. Below that, simply topping up may be enough: follow your boiler's manual.
The thermostat. Flat batteries, the wrong programme or a set temperature that's too low: it's a more common cause of “breakdown” than you'd think.
The power supply. Check that the boiler's breaker hasn't tripped. If it's locked out, you can try resetting it; if the fault comes back, don't keep trying and call us.
Your project, step by step
How a boiler repair works
- 01
You call
Tell us about the fault: what's stopped working, the code shown, the boiler's brand. We set a visit within 24 hours, 7 days a week.
- 02
The technician finds the fault
They look for the exact cause: pump, valve, ignition, circuit board… Travel, diagnosis and first hour: €149 VAT incl.
- 03
You approve the price
If a part needs replacing, you know its price before we start. You decide.
- 04
The boiler starts again
Pressure and safety devices checked, then a few tips so the fault doesn't come back.
Our prices
Boiler repair price in Brussels
Travel, diagnosis and the first hour have a fixed price: you know it before the technician even rings the bell.
Prices include VAT. If a part needs replacing, we give you its price and wait for your agreement before repairing.
- Boiler repairTravel + diagnosis + 1st hour€149VAT incl.
- Boiler replacementIf the repair is no longer worth it, free quoteOn quote
Brands we install
The brands we repair
Vaillant, Bulex, Bosch, Buderus, Junkers, Viessmann and Chaffoteaux: our technicians repair gas and oil boilers from these brands.
Our customers
What our customers say.
Reviews shown word for word, in their original language (French).
5.0
More than 30 Google reviews
Read all reviewsTechnicians certified in all three regions
- Detailed quote within 24 hours
- Work to Belgian standards (EPB, RGIE)
- One number for heating, electrics and plumbing
Frequently asked questions
Frequently asked questions about boiler repairs
Can't find your question? Ask it on WhatsApp, with a photo if that helps, or leave your number and we'll call you back.
A repair call-out is charged at €149 VAT incl., including travel, diagnosis and the first hour of work. Beyond the first hour, each extra hour is charged at €65 VAT incl.. If a part needs replacing, we tell you its price before the repair.
We answer 24/7, and a technician comes within 24 hours, 7 days a week, in Brussels and the surrounding area. Need them within 2 hours? Tell us: it's possible with the urgent call-out surcharge (+50 €, see our prices).
We work on gas and oil boilers from Vaillant, Bulex, Bosch, Buderus, Junkers, Viessmann and Chaffoteaux.
Note the code and your boiler's brand. You can try resetting it; if the fault comes back, don't keep trying and call us: the code helps us prepare the visit.
Pressure that drops regularly usually means a leak on the circuit or a deflated expansion vessel. It isn't dangerous right away, but the boiler will end up locking out: it's best to have the system checked.
A boiler lasts around 15 years. Beyond 12 to 15 years, or if breakdowns keep happening, a replacement is often better value. We advise you after the diagnosis, with a quote.
Yes: regular servicing spots worn parts before they fail. It is compulsory in the Brussels-Capital Region anyway.
Not first: leave the home immediately without touching any switches, then call your region's gas emergency number from outside (Sibelga 0800 19 400 in Brussels, Fluvius 0800 65 0 65 in Flemish Brabant, ORES 0800 87 087 in Walloon Brabant) or 112. Contact us afterwards, once the situation is safe.
Yes, our repairs come with a 2-year guarantee. During that period, no other company may work on the installation concerned, otherwise the guarantee is void.
Where we work
Brussels and the surrounding area
Boiler repairs within 24 hours in the 19 Brussels municipalities and the surrounding area, in Flemish Brabant and Walloon Brabant.
Brussels-Capital Region
- Anderlecht
- Auderghem
- Berchem-Sainte-Agathe
- City of Brussels
- Etterbeek
- Evere
- Forest
- Ganshoren
- Ixelles
- Jette
- Koekelberg
- Molenbeek-Saint-Jean
- Saint-Gilles
- Saint-Josse-ten-Noode
- Schaerbeek
- Uccle
- Watermael-Boitsfort
- Woluwe-Saint-Lambert
- Woluwe-Saint-Pierre
Flemish Region
- Sint-Genesius-Rode
- Wezembeek-Oppem
- Kraainem
- Linkebeek
- Drogenbos
- Tervuren
- Overijse
- Hoeilaart
- Meise
- Grimbergen
- Keerbergen
- Tremelo
- Oud-Heverlee
Walloon Region
- Lasne
- Waterloo
- La Hulpe
- Rixensart
- Braine-l'Alleud
- Chaumont-Gistoux
- Grez-Doiceau
- Beauvechain
- Incourt
Around your boiler
Need something else?
- HeatingBoiler serviceThe compulsory service of your gas or oil boiler by a certified technician, with the certificate handed over straight away.Find out more
- HeatingBoiler replacement and installationGas condensing boiler or heat pump: quote within 24 hours, fitted in 1 to 2 days, 2-year guarantee on fitting + 2 years on parts.Find out more
- HeatingHeating system power flushingSludge and rust clogging your radiators? We clean the whole circuit to get even heat back and protect the boiler.Find out more
- PlumbingPlumbing repairsWater leak, running toilet, a leaking tap or burst pipe: a plumber at your door within 24 hours, 7 days a week, at the price given.Find out more
Fast repairs
Boiler broken down? Your technician is (almost) on the way.
Describe the fault on the phone: a technician comes within 24 hours, 7 days a week, in Brussels and nearby, and gives you the price before repairing.
No time right now? Request a callback










